a furrow or groove.
Anatomy. a groove or fissure, especially a fissure between two convolutions of the brain.
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- sub·sul·cus, noun, plural sub·sul·ci.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use sulcus in a sentence
It is then carried across the sulcus and is made to emerge through the opposite lip of the cervix.
Median line with a sulcus on each side; central area quadrate.The Diatomaceae of Philadelphia and Vicinity | Charles Sumner Boyer
The single median sulcus on the anterior face of each incisor is typical of the genus Cratogeomys.Pleistocene Pocket Gophers From San Josecito Cave, Nuevo Leon, Mexico | Robert J. Russell
It is rather robust, very much recurved and grooved by a deep vertical sulcus upon its antero-internal face.On The Affinities of Leptarctus primus of Leidy | J. L. Wortman
sulcus longitudinalis in superiore latere perforatus serie punctorum.
British Dictionary definitions for sulcus
a linear groove, furrow, or slight depression
any of the narrow grooves on the surface of the brain that mark the cerebral convolutions: Compare fissure
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012